Lewes, United Kingdom — Weather in July 2026

Monthly climate averages for Lewes, United Kingdom. Based on 10-year ERA5 reanalysis data.

Cfb Oceanic
8.3 /10
Excellent

July is an excellent month in Lewes

Climate Overview

Lewes, United Kingdom in July has warm conditions, with highs averaging 20.4°C (69°F). Rain falls on about 10 days this month. Sea temperature stays cool at 19.3°C (67°F).

This month falls at the middle of Summer.

Temperatures remain fairly steady throughout July, with daily highs around 20°C (68°F).

Rainfall is heaviest during the last third of the month, while the middle tends to be drier.

Expect around 11.8h of sunshine at the start of July, decreasing to 10.4h by the end.

The warmest days tend to fall around the 18th, averaging 21.7°C (71°F).

Compared to June, this month is about 2°C warmer with 1 more rainy days.

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Monthly July Averages

Temperature
20°C / 15°C
Feels Like
20°C / 14°C
Rain
10 days · 49 mm
Sunshine
11.3h / day
Humidity
76% — Humid
Wind
20 km/h
Wind Direction
WSW (244°)
Gusts
40 km/h
Daylight
16 h
Cloud Cover
62%
Clear Sky Days
2.1
UV Index
5.7 — High
Sea Temperature
19°C
Dew Point
13°C — Comfortable
Moon Phase
New Moon · 0%

Climate Charts

Daily averages based on historical data (2016–2025)

Daily Temperature

28°C 25°C 22°C 19°C 16°C 13°C 10°C 151015202531
High Low

Daily Precipitation

0 mm 2 mm 4 mm 6 mm 151015202531
Rainfall

Daily Sunshine

0h 4h 8h 12h 16h 151015202531
Sunshine

Daily Wind Speed

0 6 12 18 24 30 151015202531
Wind Speed
Sun Position
Sunrise 05:03
Daylight 16.1h
Sunset 21:08

What to Expect

Daytime temperatures around 20°C (69°F) are ideal for full-day outdoor exploration.

Rain usually comes in shorter passing showers rather than all-day rain.

1 of the last 5 yearly records were warmer than this month's long-run average.

Compare Months

January
Poor
Temp
8°C / 4°C
Feels Like
4°C / -1°C
Rain
12days (68 mm) Wet
Sun
3.8h Poor
Humidity
85% Humid
UV
1.1 Low
Snow Days
2days
View Details
February
Poor
Temp
9°C / 5°C
Feels Like
5°C / 0°C
Rain
10days (55 mm) Wet
Sun
5h Fair
Humidity
83% Humid
UV
1.6 Low
Snow Days
1days
View Details
March
Poor
Temp
10°C / 5°C
Feels Like
6°C / 1°C
Rain
13days (57 mm) Wet
Sun
6.9h Fair
Humidity
81% Humid
UV
3.4 Moderate
Snow Days
1days
View Details
April
Fair
Temp
12°C / 6°C
Feels Like
10°C / 3°C
Rain
9days (45 mm) Wet
Sun
10.1h Excellent
Humidity
77% Humid
UV
4.9 Moderate
View Details
May best
Good
Temp
16°C / 10°C
Feels Like
14°C / 7°C
Rain
10days (54 mm) Wet
Sun
11.2h Excellent
Humidity
78% Humid
UV
5.7 High
View Details
June best
Good
Temp
19°C / 13°C
Feels Like
18°C / 11°C
Rain
9days (59 mm) Wet
Sun
11.9h Excellent
Humidity
78% Humid
UV
6.3 High
View Details
July best
Excellent
Temp
20°C / 15°C
Feels Like
20°C / 14°C
Rain
10days (49 mm) Wet
Sun
11.3h Excellent
Humidity
76% Humid
UV
5.7 High
View Details
August best
Excellent
Temp
21°C / 15°C
Feels Like
20°C / 14°C
Rain
8days (56 mm) Wet
Sun
10.5h Excellent
Humidity
78% Humid
UV
5.4 High
View Details
September
Good
Temp
19°C / 13°C
Feels Like
17°C / 12°C
Rain
11days (67 mm) Wet
Sun
8.5h Good
Humidity
79% Humid
UV
4.2 Moderate
View Details
October
Good
Temp
15°C / 11°C
Feels Like
13°C / 8°C
Rain
12days (79 mm) Wet
Sun
6.3h Fair
Humidity
82% Humid
UV
2.5 Moderate
View Details
November
Fair
Temp
11°C / 7°C
Feels Like
8°C / 4°C
Rain
12days (79 mm) Wet
Sun
4.6h Fair
Humidity
84% Humid
UV
1.4 Low
View Details
December
Poor
Temp
9°C / 6°C
Feels Like
6°C / 2°C
Rain
12days (78 mm) Wet
Sun
3.2h Poor
Humidity
86% Very Muggy
UV
0.9 Low
Snow Days
1days
View Details
Month Temp Feels Like Rain Sun Humidity UV Status
January 8°C / 4°C 4°C / -1°C 12days (68 mm) Wet 3.8h Poor 85% Humid 1.1 Low Poor View Details
February 9°C / 5°C 5°C / 0°C 10days (55 mm) Wet 5h Fair 83% Humid 1.6 Low Poor View Details
March 10°C / 5°C 6°C / 1°C 13days (57 mm) Wet 6.9h Fair 81% Humid 3.4 Moderate Poor View Details
April 12°C / 6°C 10°C / 3°C 9days (45 mm) Wet 10.1h Excellent 77% Humid 4.9 Moderate Fair View Details
May best 16°C / 10°C 14°C / 7°C 10days (54 mm) Wet 11.2h Excellent 78% Humid 5.7 High Good View Details
June best 19°C / 13°C 18°C / 11°C 9days (59 mm) Wet 11.9h Excellent 78% Humid 6.3 High Good View Details
July best 20°C / 15°C 20°C / 14°C 10days (49 mm) Wet 11.3h Excellent 76% Humid 5.7 High Excellent View Details
August best 21°C / 15°C 20°C / 14°C 8days (56 mm) Wet 10.5h Excellent 78% Humid 5.4 High Excellent View Details
September 19°C / 13°C 17°C / 12°C 11days (67 mm) Wet 8.5h Good 79% Humid 4.2 Moderate Good View Details
October 15°C / 11°C 13°C / 8°C 12days (79 mm) Wet 6.3h Fair 82% Humid 2.5 Moderate Good View Details
November 11°C / 7°C 8°C / 4°C 12days (79 mm) Wet 4.6h Fair 84% Humid 1.4 Low Fair View Details
December 9°C / 6°C 6°C / 2°C 12days (78 mm) Wet 3.2h Poor 86% Very Muggy 0.9 Low Poor View Details

What to Wear

Dress in layers — a mix of long sleeves, light sweaters, and a versatile jacket works best for changeable conditions.

A waterproof jacket or compact umbrella is recommended for occasional showers.

Packing List

UmbrellaWaterproof jacketSunscreen (SPF 30+)SunglassesComfortable walking shoes

Frequently Asked Questions

July is typically excellent for visiting Lewes, with average highs of 20°C (69°F) and around 10 rainy days. Lewes, United Kingdom in July has warm conditions, with highs averaging 20.4°C (69°F). Rain falls on about 10 days this
Lewes typically sees around 10 rainy days in July with 49 mm (1.9 in) of total rainfall. An umbrella should suffice.
Evenings in Lewes during July are mild at 15°C (59°F). A light cardigan is usually enough.
With highs of 20°C (69°F) and lows of 15°C (59°F) in July, we recommend: Umbrella, Waterproof jacket, Sunscreen (SPF 30+), Sunglasses, Comfortable walking shoes. Comfortable walking shoes are essential.
Yes, July offers some of the best weather conditions in Lewes with comfortable temperatures and lower chances of rain.
The average UV index in Lewes during July is 6 (high). Wear sunscreen SPF 30+, a hat, and sunglasses. Limit direct sun exposure between 10 AM and 4 PM.
Lewes gets approximately 16 hours of daylight per day in July, with around 11 hours of sunshine.
Snow is uncommon in Lewes during July based on 10-year climate averages.

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